Correct Answer: Option A

Explanation

\(\frac{1}{U} + \frac{1}{V} = \frac{1}{f}\)

\(\frac{1}{8} + \frac{1}{V} = \frac{1}{2}\)

\(V = \frac{8}{3}\)

\(V = 2.7cm\)

There is an explanation video available below.

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